Release: NBER Macrohistory Database
Series Is Presented Here As 3 Variables: (1) Original Data, 1939-46; (2) Seasonally Adjusted Data, 1946-63; (3) Annual Data Only, 1946-63. Source:
This NBER data series a02198c appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html.
NBER Indicator: a02198c
National Bureau of Economic Research, Public New Construction Activity, Highways, Value in Constant Prices for United States [A0298CUSA382NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/A0298CUSA382NNBR, October 21, 2017.